Does déjà vu mean you lived another life? Here’s what science says
The scientific explanation points to memory and the way the brain processes familiarity.
You’ve probably experienced it: you walk into a new place, hear a phrase, smell something, or even meet someone for the first time and, suddenly, an inexplicable feeling appears: “I’ve been here before.” For many people, déjà vu can feel like proof that the moment happened in another life , but science approaches the experience from a different perspective.
When something new feels familiar
One explanation that has been studied connects déjà vu with familiarity without a specific memory. The brain may recognize elements of a new experience that resemble something it has encountered before, even when the person cannot identify where that feeling comes from . That’s why a place you’ve never visited can seem strangely familiar.
Researcher Anne Cleary has specifically studied the relationship between déjà vu and spatial memory . Her research suggests that a similar arrangement of objects or spaces to one we already know can trigger a feeling of familiarity, even when we cannot consciously retrieve the memory behind it.
What if it happens with a person or a smell?
The same feeling can happen in those situations, too. In these cases, your brain may have previously stored similar physical features, patterns, or smells, even if you can’t identify when you encountered them .
So now you know: the next time it happens, you can recognize the feeling without immediately assuming that you already lived that moment in another life.
